/Engine/Source/Runtime/Datasmith/CADKernel/Public/CADKernel/Geo/GeoEnum.h
this will eventually be reconciled with what the Geometry team is using.
namespace UE { namespace CADKernel { enum ECurve { Bezier = 0, BoundedCurve, Composite, Ellipse, Hyperbola, Nurbs, Offset, Parabola, Polyline3D, Polyline2D, Restriction, Segment, Surfacic, SurfacicPolyline, Spline, None, } } }